9.TROUBLESHOOTING
9-3
Radial position of rotor wrong due to broken woodruff key. Replace
woodruff key.
Coating on stator winding is damaged. Replace stator.
Resistance value is out of specification (refer to technical specifications).
Replace magneto.
Connector on magneto is damaged and/or has electrical failure. Repair
and clean contacts of connector.
3. Check voltage regulator/rectifier.
Refer to charging system.
4. Check wiring harness for cracks or other damages.
harness shows electrical failure and/or other damages. Replace/repair
wiring harness.
LUBRICATION
Symptom: LOW OR NO OIL PRESSURE/HIGH OIL CONSUMPTION
1. Check oil level and search for leakage on crankcase and/or sealing parts.
Crankcase is leaking due to damage. Rebuild engine with new crankcase
and gasket parts. Use recommended oil (refer to technical specifications).
Crankcase is leaking due to loose screws. Retighten screws with
recommended torque
Sealing rings, O-rings and/or gaskets are brittle, hard or damaged.
Replace damaged parts.
Poston rings worn out (blue colored engine exhaust emission). Replace
piston rings (refer to cylinder and head).
Piston rings are broken (low compression). Replace piston rings (refer to
cylinder and head).
Valve stem seal damaged and/or sealing lip is hard and/or brittle.
Replace all valve stem seals.
2. Check oil filter for contamination.
Oil filter clogged. Replace oil and oil filter at the same time. Use
recommended oil (refer to technical specifications).
3. Check oil drain plug on engine bottom.
Plug is loose and/or gasket ring is missing. Retighten the plug and/or
place gasket ring.
4. Check leak indicator hole if oil leaks (in crankcase MAG side-water pump
housing area).
Oil leaking from leak indicator hole means a damaged oil seal on water
pump shaft. Replace oil seal (refer to cooling system).
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